19709050

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:247

約数の個数: 48

約数和(自身を含む): 38301120

約数和(自身を除く): 18592070

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 89, 103, 178, 206, 215, 430, 445, 515, 890, 1030, 1075, 2150, 2225, 2575, 3827, 4429, 4450, 5150, 7654, 8858, 9167, 18334, 19135, 22145, 38270, 44290, 45835, 91670, 95675, 110725, 191350, 221450, 229175, 394181, 458350, 788362, 1970905, 3941810, 9854525, 19709050]

約数ペア:

[(1, 19709050), (2, 9854525), (5, 3941810), (10, 1970905), (25, 788362), (43, 458350), (50, 394181), (86, 229175), (89, 221450), (103, 191350), (178, 110725), (206, 95675), (215, 91670), (430, 45835), (445, 44290), (515, 38270), (890, 22145), (1030, 19135), (1075, 18334), (2150, 9167), (2225, 8858), (2575, 7654), (3827, 5150), (4429, 4450)]